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Re: Engine over-revving until it shifts into 3rd gear then its back to normal
mine was doing something like this last time I used 4x4 . In my situation , the vacuum switch needs replacing on the top of the transmision/transfer case. It is allowing tranny fluid to be sucked out of the case and into the intake manifold . It fowled out one of my plugs where it was burning it . I get blue smoke when I shift to 4x4, That was my big clue. I am not sure where you could check for fluid since mine has been well modified with carb . I was losing a couple of tranny quarts every 100 miles or so. Just a thought . Rob
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2000 Trans Am six speed Blackbird .Fast enough stock!
2005 Grand Prix.
2005 2500HD Silverado 4x4 , Duramax!!!!!!! Lifted ,Pumped,Humped,Thumped!
1988 JEEP Cherokee: Lifted, Sons new toy.
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